<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <form action="/login1" method="post">
            用户名:<input type="text" name="username"></br>
            密码:<input type="password" name="password" ></br>
            <input type="submit" value="登录">
        </form>
    </div>
</body>
</html>